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发明名称
Appareil pour régler une différence de pression entre deux conduites
摘要
申请公布号
FR738538(A)
申请公布日期
1932.12.27
申请号
FRD738538
申请日期
1932.06.11
申请人
ETABLISSEMENTS LUCHAIRE
发明人
分类号
F24D1/00
主分类号
F24D1/00
代理机构
代理人
主权项
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